What is the formula of the compound that would form between sodium, 1s°2s°2p°3s', and nitrogen, 1s 2s 2p.

Q: Coulombs Law describes the interaction between two charges and varies by the magnitude of these…

A: Effective nuclear charge = number of protons - number of core electrons

Q: 4. The wrong statement about VA group Hydrides is

A: The term hydride is used after a binary compound when an element react with hydrogen

Q: Mgo is a basic oxide Fa O TbO

A: Oxide are binary compound of oxygen with other elements. On the basis of chemical behaviour it is of…

Q: Which element is the most metallic? F Au Fr Li   What helps particles move?  Kinetic Molecular…

A: First group elements are most metallic character.  so lithium (Li) is correct option.…

Q: What is the type of interactions holding Sr atoms together in the crystal?

A: Strontium (Sr) with atomic number 38 is a metal and it exists in crystal form.

Q: Using the periodic table only, arrange the elements in each set in order of increasing EN: (a) S, O,…

A: Using the periodic table only, arrange the elements in each set in order of increasing EN: (a) S, O,…

Q: A(n) ___________ is the smallest unit of a compoundformed by the union of two or more atoms

A: A molecule is an electrically neutral group of two or more atoms which are held together by chemical…

Q: delta

A: The chemical reaction: 4 NH3(g)  +  O2(g)  ---->  2 N2H4(g)  + 2 H2O(l). We need to determine del…

Q: what are the number of oxygen atoms which are bonded to P in P4O10?

A: Structure of given molecule as follows,

Q: From its position in the periodic table, determine which atom in each pair is more…

A: In the periodic table, the electronegativity of elements in a period increases from left to right…

Q: Name the hydrate compound with the chemical formula Li2CO3.7H2O

A: Ionic compounds are formed by the transfer of electrons from cations to anions. In the ionic…

Q: NaCl and KF have the same crystal structure. The only differencebetween the two is the distance that…

A: (a) The energy required to completely separate a mole of a solid ionic compound into its gaseous…

Q: a) V2Os+2 H2 → VO, + 2 H,O b) 2 K+ Br 2 K* + 2 Br

A: Oxidising agent is that substance which itself reduces and bring the oxidation of other .

Q: Why is mercury a liquid? Why does it have a 1ion?

A: There are three categories of elements in periodic table. These are metals, non metals and…

Q: A new salt is made with the element Hampshrium (Hp 2+) and the polyatomic ion Whippurate (WhOH 3-).…

A: We have a salt having cation Hp+2 and anion WhOH3- . We have to predict the formula for the salt.

Q: Describe the PHYSICAL PROPERTIES of the following Specifically, what type of matter is this? (e.g.…

A: Hello. Since the question consists of multiple sub-parts, the first three sub-parts shall be only…

Q: Generally in which direction on the periodic table does the ionic radius tend to decrease?

A:

Q: Why water has the highest boiling point compare with hydrogen floride (HF) , and ammonia (NH3)?

A: Boiling point depends on two factors: Electronegativity of the central atom. Number of H-bonds…

Q: Predict which element in each of the following pairs is more electronegative according to the…

A: Electronegativity trend in periodic table generally increases as you move from left to right across…

Q: 8.13 In which of the following states would NaCl be electrically conducting: (a) solid, (b) molten…

A: In which of the following states would NaCl be electrically conducting has to be given.

Q: The student finds the following particulate model of AgCl(s). Assuming the crystal structures are…

A: The electronic configurations of cations for Ag+ and Cu+ are shown below. Ag+:Kr4d10Cu+:Ar3d10

Q: Predict the chemical formula for the ionic compound formed by Ca2+ and CIO,

A: There is two ion one is Ca^+2 and another is ClO3- ion . We have to predict the chemical formula…

Q: 18. How do you determine the molecular shape of the portion of the molecule where carbon, whose…

A:

Q: Benzene (C6H6) is an organic compound, and KCl is an ionic compound. The sum of the masses of the…

A: Ionic compounds are formed by the interaction of ions whereas covalent compounds are formed by…

Q: Calculate the electrostatic part of the lattice energy of sodium chloride, given that the…

A: NaCl is an ionic compound in which sodium is positively charged i.e. Na+and Cl is negatively charged…

Q: Which would have a larger lattice energy value, K2S or CaS explain?

A: The lattice energy actually depends on the size and charge of the ions The smaller the size and the…

Q: The molecule CH2CHCH3CH2CHF(CH3)2CCH3 contains H atoms 1. 16 2. 22 3. 18 4. 20

A: The given compound is CH2CHCH3CH2CHF(CH3)2CCH3  we need to calculate total number of hydrogens

Q: The density of BCC lithium metal is 0.534 g/cm3 and the atomic mass is 6.94 g/mol, the lattice…

A: Density of lithium = 0.534 g cm-3 atomic mass(in g) = 6.94 g mol-1

Q: State whether the bonding in each compound is likely to be covalent: i) glucose, ii) nitrogen, iii)…

A: Answer - 1. glucose Glucose is a covalent compound because glucose contains 3 non-metals: oxygen,…

Q: A compound of gallium with chlorine has a melting point of 350 K (77 °C) and a boiling point of 474…

A: Given: Melting point=77°C=350 K Boiling point=201°C=474 K

Q: Compounds of nitrogen and phosphorus are mostly lonic .a O Covalent .b C All varieties are possible…

A: Nitrogen and Phosphorus can form ionic, covalent as well as polar compounds.  Compounds of nitrogen…

Q: Predict the chemical formula for the ionic compound formed by Fe³⁺ and O²⁻

A: In an ionic compound, the ions such as the cation and anion are held together by strong…

Q: carbon dioxide is transparent to visible light and opaque to infrared radiation true or false?

A: CO2 is the main reason of the green house effect since it reflects (IR) infrared radiated nightly…

Q: Starting with CnH2n+2, derive the general formula for the compounds sh II

A: The generall formula for the first compound is CnHn+1 The general formula for the second compound

Q: Which has the smallest radius of the following? O Mn O Mn 2+ Mn 3+ jes.

A: As the positive charge increase on element radius decreases due to increase in  nuclear charge. So,…

Q: Which of the following has the largest covalent radius ?   Mg Ca Sr Ba

A: Covalent radius of an element is defined as the half of the internuclear distance between two atom…

Q: Using the periodic table only, arrange the elements in eachset in order of increasing EN: (a) S, O,…

A: Electronegativity refers to the ability of an atom to attract and hold a pair of bonded electrons…

Q: Why the radius of Fe+2 is greater than Fe+3?

A: The distance from the nucleus to the outer most shell of an atom is called as the atomic radius. As…

Q: From its position in the periodic table, determine which atom in each pair is more…

A:

Q: Solid lithium hydroxide is used t remove exhaled carbon dioxide from space vehicles by forming…

A: The number of moles of an element is the mass of that element in the total molar mass of the…

Q: Which of the following compounds is likely to have the lowest melting point?   : C a O MgO S c O Se…

A: The melting points of the oxides of the Alkaline Earth metals or 2nd group element increases till…

Q: What is the energy change when the temperature of 10.1 grams of solid silicon is decreased from 36.2…

A: The energy change of any solid is given by, => Q = mCΔT where m = mass of solid = 10.1 g C =…

Q: the compound molecular in nature in gas phase but ionic in solid state is: a PCl5  b   CCl4 c  PCl3…

A: PCl5 is molecular in the gas phase

Q: What is the central atom in phosphoric acid (H3PO4)?

A: The structure of phosphoric acid is,

Q: For each of the following pairs of substances, predict which will have the higher melting point, and…

A: The melting point of substances depends on the crystaline structure ,type of bonding and inter…

Q: Which compound likely has a higher melting point, aluminum chloride AlCl3 or Phosphorus trichloride…

A: So the melting point of given two compounds i.e. aluminium Chloride ( AlCl3) and phosphorus…

Q: a. CaO C. NF3 e. SrH2 b. NazS. d. (NH4)2SO4 y sulfate

A: The ionic compound are those which dissociates into ions when dissolved in aqueous media.